Anyone has a recommendation for a headset with micro? For remote-working purposes

I enjoyed some Logitech call center model that was USB. Very cheap and light and comfortable, very good call quality. I could look up the model if you want.

Is a reducer pure-function an example of a finite state machine? (reduce + 0 [1 2 3])?

yes, and it's one of the things that makes it rather hard to properly type transducers

a reducer function is f(old-state, new-event) -> new-state

Ah cool, thanks!

I’m not sure what you mean by the examples though, those are easily typed?